Home / 228,154.05-342,254.55-86,118.96

Finding the Fourth Proportional to 228,154.05, 342,254.55 and 86,118.96

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Solution

The fourth proportional to 228,154.05, 342,254.55 and 86,118.96 is: 129,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,154.05 : 342,254.55 = 86,118.96 : x
  2. Step 2: Convert to fraction form
    228,154.05/342,254.55 = 86,118.96/x
  3. Step 3: Cross multiply
    228,154.05x = 342,254.55 × 86,118.96
  4. Step 4: Simplify right side
    228,154.05x = 29,474,605,470.67
  5. Step 5: Solve for x
    x = 29,474,605,470.67/228,154.05
  6. Step 6: Final answer
    x = 129,187.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.